Dog Keeps Staring At Drain, Then Airport Staff Finds Out Why

Confirming the sound

Dogs’ hearing is far superior to that of humans, so it made sense for Wilson to notice something before anyone in the airport did. But what was it? The security guard placed his ear close to the drain and heard it again. It was very high-pitched, and it sounded sad in a way. The man stood up and asked his utility colleague where the drain eventually led.